i have iphone 3g firmware 4.1. recently it was stuck on apple logo. when i done restore idevice it want to connect to itunes. when i connect to itunes it say my sim card does not support. now it stuck to connect to itunes. how to solved it please help me. it is my friend phone. he dont know anything about iphone. when he gave to me his iphone were stuck on apple logo. i dont know his phone are sim lock. so i just restore it to 4.1. after restoring the itunes say that the sim card was not supported. so i need you guy help me how to solved it. thank you.